From d5c890c50e05967849afc3f60a0cdf4bb6ae0c2b Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Fri, 9 Feb 2018 22:14:44 +0100
Subject: [PATCH] in ViewProviderBody::updateData make sure a view provider
 exists

---
 src/Mod/PartDesign/Gui/ViewProviderBody.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Mod/PartDesign/Gui/ViewProviderBody.cpp b/src/Mod/PartDesign/Gui/ViewProviderBody.cpp
index 5eef340e8c31..bac5c64a5089 100644
--- a/src/Mod/PartDesign/Gui/ViewProviderBody.cpp
+++ b/src/Mod/PartDesign/Gui/ViewProviderBody.cpp
@@ -233,9 +233,9 @@ void ViewProviderBody::updateData(const App::Property* prop)
         auto features = body->Group.getValues();
 
         // restore icons
-        for ( auto feature : features) {
+        for (auto feature : features) {
             Gui::ViewProvider* vp = Gui::Application::Instance->activeDocument()->getViewProvider(feature);
-            if(vp->isDerivedFrom(PartDesignGui::ViewProvider::getClassTypeId())) {
+            if (vp && vp->isDerivedFrom(PartDesignGui::ViewProvider::getClassTypeId())) {
                 static_cast<PartDesignGui::ViewProvider*>(vp)->setTipIcon(feature == tip);
             }
         }